In murine models of asthma, IL-17 stimulates and orchestrates airway neutrophilic infiltration by inducing the expression of neutrophil-attractant chemokines like CXCL1, CXCL2, IL-6, and IL-8 in humans (75, 108, 112–115, 117, 143). This evidence concerns the gene CXCL1 and asthma.